Drum-radiator for heating-stoves.



K. E. LITTLE.

DRUM RADIATOR FOR HEATING STOVES.

APPLICATION FILED MAY 3. 1915.

1,178,164. Patented Apr. 4, 1916.

Him

KNEUD E. LITTLE, on TAHLEQUAH, OKLAHOMA.

DRUM-RADIATOR FOR HEATING-STOVES.

Specification of Letters Patent.

Patented Apr. 4, 1916.

. Application filed May 3, 1915. Serial No. 25,435.

To all whom it may concern:

Be it known that I, KNEUD E. LITTLE, a citizen of the United States,residing at Tahlequah, State of Oklahoma, have invented certain new anduseful Improve ments in Drum-Radiators for Heating- Stoves, of which thefollowing is a specification.

This invention relates to certain improve ments in drum radiators forheating stoves and the objects and nature of the invention will bereadily understood by those skilled in the art in the light of thefollowing explanation of the accompanying drawings illustrating what Inow believe to be the preferred embodiments among other formations,arrangements and constructions within the spirit and scope of myinvention.

An object of the invention is to provide improved means for lncreasingthe area of the air heating surfaces of stoves.

A further object is to provide improved means for increasing-thecirculation of a1r over the heating surfaces of stoves.

A further object is to provide means whereby the heating efficiency ofstoves may be materially increased without correspond ingly increasingthe consumption of fuel.

The invention consists in certain novel features in constructionandformation, and in combinations and arrangements as more fully andparticularly set forth and pointed out hereinafter.

Referring to the accompanying drawings: Figure 1, is a side elevation ofa stove embodying my invention having a portion broken'away disclosing asectional view of my invention. Fig.2, is a rear elevation. Fig. 3, is adetail bottom plan of the removable top or cover. Fig. 4, is a top planwith the cover removed. 7

Referring to the particular example illustrated, I somewhatdiagrammatically illustrate a heating stove embodying an exterior hollowshell, wall or casing 1, at its upper end provided with a preferablyremovable top or cover 2, having an outwardly projecting annular flangeclosing down on the top edge of the casing, and an annular dependingflange 4, snugly fitting down within the upper end of the casing. Thistop is also formed with a central heated air outlet opening 3, and withan offcenter smoke outlet opening 5, surrounded byan upwardly extendingnipple 6, to receive a smoke pipe (not shown).

WVithin the casing 1, and above the combustion chamber of the stove, Iarrange an air heating drum or' chamber 7. This chamber is preferablyhorizontally arranged and completely spans and closes the space withinthe casing 1, except for a restricted vertical flue 8, here shown sectorshape, formed in thisinstance between the vertical casing 1, and thestraight front edge wall of the chamber 7 The chamber is shownvertically thin or narrow with respect to its horizontal dimensions andis preferably provided with a'flat imperforate bottom wall directlyabove the combustion space and completely closing the upper por tion ofthe interior of the casing except for vertical smoke flue 8. The chamber7 is also provided with a preferably flat top wall which is imperforateexcept for a vertical air outlet opening alined with the opening 3 inthe top 2, and surrounded by an annular pipe or cylinder 10, fixed tosaid top wall of chamber 3, and extending up wardly therefrom throughopening 3, to

form the hot air discharge outlet from within the upper end of thecasing 1, and

between the top 2, and the top wall of the chamber 7. The smoke flue 8,opens vertically into this horizontal annular flue 12,

and the smoke outlet from the flue 12, is

providedfor by the top opening 5, and nipple 6. The flue'S, usuallyopens into the front portion of the horizontal annular flue 12 and thedischarge or outlet 5, into the rear portion of said flue 12. In otherwords, the smoke outlet from annular flue 12, is from a portionthereofdiametrically oppo site the portion into which flue 8,discharges.

The chamber 7, is provided with an air inlet opening at one edge thereofopen through the casing l, to the atmosphere at the exterior thereof. Inthe example illustrated, the flue 8, is arranged at the front edge ofthe chamber 7 and the air inlet opening to said chamber is arranged atthe rear edge thereof, and said opening is in the form of a horizontallyelongated slot 7 a that in length is less than the greatest diameter ofsaid chamber, although all features of my invention are not so limited.

In operation, the hot burning gases in the combustion chamber of thestove directly impinge against the bottom wall of the chamber 7 and moveforwardly along said her and the pipe 10, is thereby highly heated andexceedingly rapid circulation of air is thereby set up and maintainedthrough passage 11 in pipe 10, and thereinto from Chunk her 7, and intochamber 7, through its rear inlet opening. 7

.Where the top 2, is rendered removable, the annular flue 12, is therebyrendered readily accessible so that soot and dust can be easily brushedtherefrom and allowed to drop into the stove through flue 8.

I do not Wish to limit all features of the invention to any particularform or shape of chambers and passages.

It is evident that various changes, variati'ons' and modifications mightbe resorted to Without departing from the spirit and scope of myinvention, and hence I do not Wish to limit myself to the exactdisclosure hereof.

What I claim is: p

1. An air heating device comprising a casing having a top, a hot airdrum Within and spanning said casing except for and providing arestricted vertical smoke flue Within the casing at one edge of saiddrum, the edge of said drum opposite said line having an air inletopening from the exterior of said casing, and a vertical hot airoflitake pipe from said drum to and opening approximately centrallythrough said top, an annular smoke flue being thereby formed above saiddrum and below said top and around said pipe andinto which said verticalflue opens, a vertical off center smoke discharge from said annular fluebeing provided through said top.

2. In a device for the purposes substantially as described, an exteriorcasing, and an air heating drum transversely arrange within the casingand having an air inlet from the exterior of the casing and a hot airGenie: of this patent may be attained for 3. In a device for thepurposes substantially as described, a casing, a hot air drum Within andtraversing said casing and closing the same except for a restrictedsmoke flue leading from the space below the drum to an annular smokeflue above the drum,

said drum having an edge air inlet opening through the casing, atransverse Wall arranged a distance above the drum and forming the topWall of said annular smoke'flue,

a smoke discharge from saidannular flue being provided, and a verticalhot air ofltake pipe of restricted diameter with respect to the diameterof said drum and extending upwardly from said drum and through said Walland being surrounded by said annular smoke flue.

4. In ahe'ating stove, in combination, an

exterior casing, means providing an air heat-' ing drum extendingcompletely across and closing the inter or of the casing except for arestricted vert cal smoke passage, the Gasing having an air inletopening into an edge 7 portion of the interior of the drum, a verticalhot air oiftake pipe Within the casing and from the drum, and inea nsprovidinga top Wall for a smoke flue Within the casing above said drumand surrounding said pipe and into which said smoke passage dis--charges at one side of said pipe, said smoke flue having a smoke outletfrom its portion at the opposite side of said pipe.

In testimony whereof Iafiix my signature in presence of tWo Witnesses.

KNEUD LITTLE.

Witnesses: i

JNo. H. HOLLAND, S. BARNES.

five cents each, y sing the Commissioner ot Patents, Washing tomnc.

